Parthanatos as a Cell Death Pathway Underlying Retinal Disease
- 29 December 2019
- book chapter
- research article
- Published by Springer Science and Business Media LLC
- Vol. 1185, 323-327
- https://doi.org/10.1007/978-3-030-27378-1_53
Abstract
Parthanatos is a programmed cell death pathway mediated by the effects of pathogenically high levels of poly(ADP-ribose) polymerase 1 (PARP1) activity. This process underlies a broad range of diseases affecting many tissues and organs across the body, including the retina. This chapter reviews mechanisms that are currently understood to drive parthanatos in the context of retinal diseases associated with this form of cell death. Toxicity of upregulated poly(ADP-ribose) (PAR) content, NAD+ and ATP depletion, translocation of apoptosis-inducing factor (AIF) to the nucleus, and loss of glycolytic function are discussed. Since therapies that preserve vulnerable cells remain elusive for the vast majority of retinal diseases, pharmacologically blocking parthanatos may be an effective treatment strategy for cases in which this process contributes to pathogenesis.Keywords
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